(19)

(11)

EP 3 074 107 A2

(12)

(88) Date of publication A3: 30.07.2015 (43) Date of publication: 05.10.2016 Bulletin 2016/40 (21) Application number: 14821337.4 (22) Date of filing: 21.11.2014

(51) International Patent Classification (IPC):  B01D 17/02(2006.01) C09K 8/36(2006.01) B01D 17/04(2006.01) E21B 43/00(2006.01) (86) International application number: PCT/US2014/066773 (87) International publication number: WO 2015/080961 (04.06.2015 Gazette 2015/22)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME (30) Priority: 27.11.2013 US 201361909754 P 27.02.2014 US 201461945303 P (71) Applicant: Cabot Corporation Boston, MA 02210 (US)	(72) Inventors: KAMINSKI, Lauren J. Aberdeen AB116XP (GB) HOWARD, Siv K. Billerica, MA 01821 (US) SHARMA, Ravi Acton, MA 01720 (US) GRZYBEK, Lukasz Billerica, MA 01821 (US) (74) Representative: Trueman, Lucy Petra  Barker Brettell LLP 100 Hagley Road Edgbaston Birmingham B16 8QQ Birmingham B16 8QQ (GB)